Improvement in gas-heaters



S. T. MCDOUGALL.

Vapor Stove.

Patented May 5, 1868.

i Inzlwzlqir' I N. PETERS, PHOTO LTHOGRAFHE s. r. McDO UGALL, OF BVROOKLYN, NEW YORK.

Letters Patent No. 77,635, dated May a 5, 1868.

IMPROVEMENT IN GAS-HEATERS.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, S. T. MGDOUGALL, of Brooklyn, Kings county, New York, have invented, made, and applied to use certain new and useful Improvements in the Construction and Operation of Gas-Stoves for cooking and heating purposes; and I dodclare that the following is a full, clear, and correct description of the same, reference being had to the accompanying drawings, uiakingpart of 'this specification, and to the letters of reference marked thereon, in which- Figure 1 is a front view of my improved gas cooking-stove.

Figure 2 is an interior view of the same.

Figure 3 is a view of the ironing-apparatus employed by me.

Figures 4 and 5 are views of the kettle-rest.

In the drawings, like pa rtsbf the inv'ention'are pointed out by the same letters of reference. p

- The nature of the present invention consists in certain improvements, as more fully hereinafter described, in the construction and operation of gas cooking and'heating-st-oves.

To enable those skilled in the arts to make and use my invention, I will proceed to describe the construction and operation of the saine. I i

A A show the case or cabinet of my improved stove, provided with the doors B and top C, which top may .be thrown up and away from the case or cabinet A, when the stove is in use, to allow the heat-and steam to escape;

top to the bottom of the cabinet A. I I

E is the main supply-pipe for supplying gas to the burner H, and also to the burners I and J.

This main pipe E passes through the partition D, communicating directly with the burner I-I, .and through a branch-pipe, F, with the burners I and J.

Upon a shelf upon one side of the partition D rests the burner H, supplied with gas by the pipe E, and provided with a kettle-rest, L, upon which the culinary vessels may be placed. r

The burner H is formed of an upright cylinder provided with a perforated top.

The kettle-rest is made star-shaped, as shown'in fig. 5, the points ofthe star being cut away or hollowed out inside to allow the flame to pass up the points, instead of being obstructed by the vessels placed upon them.

The cabinet A is divided internally by a partition, D, placed at or about its centre, and extending frointhe The burner H is supported on a raised: base to allow the air introduced, as hereinafter described, to pass freely into the burner at its base and unite with the gas supplied by the pipe E. The burner H and kettle rest L are supported,for heavy weights, by the ring or frame K, as shown in fig. 4 of the drawings.

Upon the opposite side of the partition D are placed the roasting-oven S, the centre or auxiliary chamber R, in which are the burners J J, and the baking-oven Q.

The ovens and auxiliary chamber are constructed from sheet metal, each having a door, and the ovens are furnished with oven-slides, as in the case of ordinary ovens.

The oven Q has placed around it an outer casing, P, so that the waste heat discharged from the oven S may pass through the auxiliary chamber, and besupplied to the oven Q, passing round the same, and be discharged through an opening in the back of the case or cabinet A.

In the top of the roasting-oven is the burner I, formedof afiat 'metal case, having its under side perforated. The burners J are cylinder-burners, provided with perforated tops, and having air-openings at their base. The object ofthese burners is to economize gas in baking, so as not to use the large burner I in baking alone. When the burner I is employed for roasting or boiling, the burners J are not required, the heat from the same being sufiicientto supply theoven Q in addition to the oven S.

TlIG bIlIDOIS J require but about one-half the supply of gas that the burner I requires, if used for baking only. Directly above the kettle-rest L and burner H, and attached to the sides of the cabinet A, are placed brackets to receive the supporting-bars M, supporting an ir supports m are employed, and are attached upon the sides of the cabinet A. v

O is an air-supply pipe, supplying air to the pipe Gr, with which pipe also communicates pipe U, supplied with gas from-the main "pipe E.

T is a short pipe communicating to the pipe G, and supplying air and gas to the downward burner I.

All these pipes may be provided with stop-hooks, as required.

oiling-board, N. In addition to these brackets, the

The main. pipe E is supplied with gas in any convenient manner, and supplies the same, as already shown,

to the burner H, pipe U, and burners J J. 1

l The air-pipe O furnishes air .to the main pipe E and to the pipe G.

The apparatus will be found to occupy butlittl'e room, to be simple and direct in its operation, and with it cooking can be done at a comparatively small cost.

The air, supplied as shown, greatly increases the force of the flame, contributing, as it does,to the same. Having thus described the present inventioinavhat I claim as new, and desire to secure by Letters Patent, is- 1. The ironing-apparatus, constructed and operating substantially as shown, in combination with the ease or cabinet A. r. I v i 2. I claim the auxiliary chamber R, combined with the ovens Q and S, when the same shall be constructed and combined substantially as shown for the purposes set forth.

3. I claim the air-supply pipe O, in combination with the downward burner I, constructed and operating substantially as and for the purposes specified.

S. T. McDOUGALL.

Witnesses A. SIDNEY Donne, V i GATES WILLARD. 

